Cell C bad service

My data contract expired on the 31/05/2019 I upgrade to a cellphone. I received the phoned. My sim was a telkom sim Cell C sadid I must port it to Cell C. Done it. Phone on the 28/05/2019 to do a sim swap they inform me I can only do it on the 29th of May 2019. Phone on the 29th spoke to a men he said everything is done. The next day phone still not working. Phone again and again since the 29th of May 2019 to change the sim. I phoned on 03/06/2019 call centre said its not their problem it is accounts accounts said its not their problem it is the port department. They also couldn't help me put me back to call center. I spoke to Boiplo Bikobe supervisor after explaining for about 50 times already she said it will be fixed in 10 minute and it will cost me R250 for the sim swap. Today the 04/06/2019 still is the contract not working. I phoned in now again spoke to Oehlolonolo Mashilela he said the new contract is on my sim that expired already on the 31/05/2019. I must go tomorrow to a Cell C branch and register the sim on my name. I got this contract now for 7 days that I cant use but I must pay them in full on the end of the month. I want a credit for this days that my phone is not working. This will be my last contract with Cell C because my opinion is that there staff is not up to standard to know what is going on.